Theater Calculators

Speaker placement & acoustics

Acoustic Panel Coverage Estimator

A common starting range is 15–25% of wall area for a living room and 20–40% for a dedicated theater. This is coverage, not a decay-time model.

Inputs

Units
m
m
m
%
m²

0.72 m² (7.75 ft²) is a 60×120 cm panel; a 2×4 ft panel is 8 ft².

Results

Wall area
47.5m²
Target treatment
11.9m²
Panel count
17

The Result is indicative and educational. It does not constitute a design, a technical opinion or medical advice and does not replace calculations or verification by a person with the appropriate qualifications and authorisations. Before purchase, installation or use in practice – in particular in electrical installations – the Result should be verified by a qualified specialist. Details: Terms of Service, point 4.

Example products

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Calculation method

Wall area = 2(L+W)·H. Target = percent × wall area. Count = ceil(target / panel area).

Exact formula

A = 2(L+W)H. N = ceil((p/100)·A / A_panel). Limits: ignores ceiling, furniture, NRC and placement quality.

Frequently asked questions

Include the ceiling?

Not in this wall-only estimate. Add a cloud as extra area if you hang one.

NRC vs coverage?

Coverage is geometry. NRC is how well the panel works. Buy real absorbers, not egg-crate foam.

Too dead?

Stop before 50% in a living room. Dedicated theaters can go further.

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